Table 1

Members from the AMT1, AMT2, NRT1/PTR, and NRT2 gene families analyzed

Number of members analyzeda

Taxonomic group

Species (abbreviation)

AMT1

AMT2

NRT1/PTR

NRT2

Eudicot

Aquilegia coerulea (Ac)

1

4

48

2

Arabidopsis lyrata (Al)

6

1

49

6

Arabidopsis thaliana (At)

5

1

51

6

Carica papaya (Cp)

2

1

41

2

Cucumis sativus (Cs)

4

2

49

1

Glycine max (Gm)

5

5

96

3

Manihot esculenta (Me)

5

4

61

3

Medicago truncatula (Mt)

4

3

52

1

Mimulus guttatus (Mg)

6

2

52

7

Populus trichocarpa (Pt)

6

5

70

6

Prunus persica (Prp)

3

4

49

2

Ricinus communis (Rc)

4

3

41

4

Vitis vinifera (Vv)

1

1

44

0

Monocot

Brachypodium distachyon (Bd)

2

6

67

5

Oryza sativa (Os)

2

6

65

3

Setaria italic (Si)

2

6

74

7

Sorghum bicolor (Sb)

2

6

67

4

Zea mays (Zm)

3

5

51

3

Lycophyte

Selaginella moellendorffii (Sm)

1

0

31

2

Bryophyte

Physcomitrella patens (Pp)

5

10

18

8

Green algae

Chlamydomonas reinhardtii (Cr)

3

0

0

3

Volvox carteri (Vc)

6

0

1

3

Given are the numbers of protein sequences includeda from each of the 22 fully sequenced Viridiplantae genomes studied. A full list of sequences and respective accession numbers are given
in Additional file
1.

aActual family sizes may be larger, because partial sequences and those leading to
distortions in the phylogenies were excluded here.